Phonographic record-blank.



No. 676,|l|. Patented lune n, 1901. .1. w. AYLSWORTH.

PHONOGRAPHIC RECORD BLANK.

(Application filed Aug. 11, 1900.)

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Witnesses In veiltor 0M; @W w; wi

' UNITED STATES PATENT OFFICE.

JONAS WALTER AYLSWORTH, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO THE NATIONAL PHONOGRAPH COMPANY, OF ORANGE, NEW JERSEY.

PHONOGRAPHIC RECORD-BLANK.

SPECIFICATION forming part of Letters latent NO. 67 6,1 11, dated. June 1 1, 1901.

Application filed August 11, 190i). Serial No. 26,643. (No specimens.)

To all whom, it may concern: 7

Be it known that I, J QNAS WALTER AYL-s- WORTH, a citizen of the United States, residing at EastOarnge, in the County of Essex and State of New Jersey, have invented a certain new and useful Improvement in Phonographic Record-Blanks, of which the following is a description.

My invention relates to improvements in compositions for phonographic record-blanks; and my object is to secure a composition by which blanks of superior quality to those now in use can be produced, while the cost of such blanks Will be materially reduced.

In the accompanying drawing I illustrate a perspective view of a phonograph-blank, in dicating thereon the preferred combination of ingredients therefor.

Myimproved composition for phonographic record-blanks consists of an alkaline soap of higher fatty acids of the acetic series-as, for example, a stearate or palmitate, or both, of an alkali, such as soda'-a lead soapof higher fatty acids of the acetic series-as, for example, a stearate or palmitate, or both, of leadoleate of lead, a resinous substance such as colophony, gum-copal, gum-kauri, &c.and preferably a hydrocarbon-such as paraffin, ozocerite, ceresin, &c.--as indicated in the drawing. The stearic acid of com merce, from which stearate of lead and stearateof soda are made, is composed of a mixture of stearic acid and palmitic acid, so that the products secured therefrom comprise a mixture of stearate and palmitate of lead or soda, as the case may be. For cheapness of manufac= ture, therefore, I prefer to manufacture stearate and palmitate of lead or soda from the ordinary stearic acid of commerce, and therefore the most economical composition of my present invention is one utilizing both stearate and palmitate of lead and soda. It is to be understood, however, that a composition is within the scope of my present invention if it utilizes either stea'rate or palmitate of lead or of soda or any desired combination of such products. v

Proportions with which I have secured excrystalline cellent results are the following: ninet -six parts, by weight, of stearate and palmitate of 5c soda, containing about 6.9 parts of sodium oXid,(Na- O seventy-three parts, by weight,

of stearate and palmitate of lead, containing A about twenty-one parts of lead oxid, (PbO;) nine parts, by weight, of oleate of lead, con-' 5 5 taining about 2.5 parts lead oxid; ten parts,

by weight, colophony, two parts, by weight, ceresin. These proportions may be varied considerablywithoutdepartingfrom thespirit of my invention. For instance, the ceresin may be omitted entirely if it is desired to produce a harder composition, and the proportion of oleate of lead may be reduced to attain the same end.

The resulting blanks are absolutely nonin character, hard, perfectly smooth, and more or less transparent.

Having now described my invention, What I claim as new, and desire to secure by Letters Patent, is as follows:

1. A composition for phonograph recordblanks, comprising an alkaline soap of higher fatty acids of the acetic series, alead soap of higher fatty acids of the acetic series, oleate of lead and an acid resin, substantially as set fOIiih;

2. A composition for phonograph recordblanks, comprising soda soap of higher fatty acids of the acetic series, lead soap of higher fatty acids of the acetic series, oleate of lead and an acid resin, substantially as set forth.

3. A composition for phonograph recordblanks, comprising an alkaline soap of higher fatty acids of the acetic series, a lead soap of higher fatty acids of the acetic series, oleate of lead, an acid resin, and a hydrocarbon, substantially as set forth.

,4. A composition for phonograph record'- blanks, comprising soda soap of higher fatty acids of the acetic series, lead soap of higher 0 fatty acids of the acetic series, oleate of lead, an acid resin, and a hydrocarbon, substantially as set forth.

5. A composition for phonograph recordblanks, comprising stearate and palmitate of soda, stearate and palmitate of lead, oleate of 7 lead, and an acid resin, substantially as s61 This-S ecification signed and witnessed this forth. 25th day of July, 1900.

6. A composition for phono raph record- T blanks, comprising stearate 3,115 palmitate of JONAS WALTER AYLS ORTH 5 soda, stearate and palmitate of lead, ole-ate of VVitnesses:

lead, an acid resin, and a hydrocarbon, sub J. F. RANDOLPH,

J. A. BOEHNE.

stantjally as set forth. 

